Home / 91,827.57-137,455.11-70,712.76

Finding the Fourth Proportional to 91,827.57, 137,455.11 and 70,712.76

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Solution

The fourth proportional to 91,827.57, 137,455.11 and 70,712.76 is: 105,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,827.57 : 137,455.11 = 70,712.76 : x
  2. Step 2: Convert to fraction form
    91,827.57/137,455.11 = 70,712.76/x
  3. Step 3: Cross multiply
    91,827.57x = 137,455.11 × 70,712.76
  4. Step 4: Simplify right side
    91,827.57x = 9,719,830,204.20
  5. Step 5: Solve for x
    x = 9,719,830,204.20/91,827.57
  6. Step 6: Final answer
    x = 105,848.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.